20% OFF SELECT ITEMS WITH CODE: MILBOPEN20 - ENDS 4/6

SAVE 10% on your next order and sign up for our newsletter!

Search

Menu

Menu

Teams
Brands
Shop For
Caps
Jerseys
Novelties
Collections
Auctions
SALE

You Just Added:

Qty:

Product Quantity Total

You have items in your cart

You have 1 item in your cart

Total

Have a discount code? Continue to checkout to redeem it.

Search

Teams
Brands
Shop For
Caps
Jerseys
Novelties
Collections
Auctions
SALE

Log in
Create account

Home › Best Sellers › Erie SeaWolves NEC Moon Mammoths On-Field 59FIFTY Cap

Erie SeaWolves NEC Moon Mammoths On-Field 59FIFTY Cap

Erie SeaWolves NEC Moon Mammoths On-Field 59FIFTY Cap

Erie SeaWolves NEC Moon Mammoths On-Field 59FIFTY Cap

Erie SeaWolves NEC Moon Mammoths On-Field 59FIFTY Cap

Erie SeaWolves NEC Moon Mammoths On-Field 59FIFTY Cap

Erie SeaWolves NEC Moon Mammoths On-Field 59FIFTY Cap

Erie SeaWolves NEC Moon Mammoths On-Field 59FIFTY Cap

$45.00

Compare at

Size

6 3/4

6 7/8

7

7 1/8

7 1/4

7 3/8

7 1/2

7 5/8

7 3/4

7 7/8

8

6 5/8

Quantity

Only 62 left

inventory:62

inventory:41

inventory:384

inventory:442

inventory:561

inventory:845

inventory:748

inventory:728

inventory:395

inventory:246

inventory:79

inventory:84

Share Translation missing: en.general.social.alt_text.share_on_facebook Tweet Translation missing: en.general.social.alt_text.share_on_twitter Pin it Translation missing: en.general.social.alt_text.share_on_pinterest

The New Era Moon Mammoths On-Field 59FIFTY fitted cap is the exact cap the players will wear on the field for select home games this season. 100% Polyester.

The Moon Mammoths brand is a creation of Last Week Tonight with John Oliver, in partnership with Major League Baseball and the Erie SeaWolves.

Item No. 1025NECMOONMAMMOTHS5950~63/4

Related Products

View more

St. Paul Saints Hipster Corduroy Jacket — St. Paul Saints

Hipster Corduroy Jacket

Translation missing: en.products.product.price.regular_price $149.00

Translation missing: en.products.product.price.sale_price $149.00 Translation missing: en.products.product.price.regular_price

St. Paul Saints Hipster Corduroy Jacket — St. Paul Saints

Hipster Corduroy Jacket

Translation missing: en.products.product.price.regular_price $149.00

Translation missing: en.products.product.price.sale_price $149.00 Translation missing: en.products.product.price.regular_price

Team USA Adult 2026 NIKE Paul Skenes World Baseball Classic Home Replica Jersey — Indianapolis Indians

Team USA Adult 2026 NIKE Paul Skenes World Baseball Classic Home Replica Jersey

Translation missing: en.products.product.price.regular_price $195.00

Translation missing: en.products.product.price.sale_price $195.00 Translation missing: en.products.product.price.regular_price

Team USA Adult 2026 NIKE Paul Skenes World Baseball Classic Home Replica Jersey — Indianapolis Indians

Team USA Adult 2026 NIKE Paul Skenes World Baseball Classic Home Replica Jersey

Translation missing: en.products.product.price.regular_price $195.00

Translation missing: en.products.product.price.sale_price $195.00 Translation missing: en.products.product.price.regular_price

Eugene Emeralds Exploding Whales New Era On-Field 59FIFTY Cap — Eugene Emeralds

Exploding Whales New Era On-Field 59FIFTY Cap

Translation missing: en.products.product.price.regular_price $45.00

Translation missing: en.products.product.price.sale_price $45.00 Translation missing: en.products.product.price.regular_price

Eugene Emeralds Exploding Whales New Era On-Field 59FIFTY Cap — Eugene Emeralds

Exploding Whales New Era On-Field 59FIFTY Cap

Translation missing: en.products.product.price.regular_price $45.00

Translation missing: en.products.product.price.sale_price $45.00 Translation missing: en.products.product.price.regular_price

Rocket City Trash Pandas New Era 59FIFTY Snapshot Blue w/ Black Bill Primary Cap — Rocket City Trash Pandas

New Era 59FIFTY Snapshot Blue w/ Black Bill Primary Cap

Translation missing: en.products.product.price.regular_price $41.99

Translation missing: en.products.product.price.sale_price $41.99 Translation missing: en.products.product.price.regular_price

Rocket City Trash Pandas New Era 59FIFTY Snapshot Blue w/ Black Bill Primary Cap — Rocket City Trash Pandas

New Era 59FIFTY Snapshot Blue w/ Black Bill Primary Cap

Translation missing: en.products.product.price.regular_price $41.99

Translation missing: en.products.product.price.sale_price $41.99 Translation missing: en.products.product.price.regular_price

Score 10% Off & Sign-up!

Join our email newsletter and get access to new swag drops, discounts and other exclusive store news! New subscribers get 10% off.

By signing up, you are agreeing to receive news and offers from MiLB, MiLB Store and its affiliates.

Customer care

Get answers to your questions

Contact Us
Return Policy
Privacy Policy
Terms of Use
VCDPA Compliance
CCPA Compliance
Your Privacy Choices
Accessibility Menu

Account & Ordering

Get the information you need

My Account
Ordering Policy
Shipping Policy
Merchandise Inquiries
Promotions Terms & Conditions

Explore MiLB

Learn more about us

MiLB.com
MiLB Auctions
MiLB Charities
MiLB Exclusive New Logo Collection
MiLB.TV
MiLB Tickets
MiLB Team Stores

Follow Us

Hours Of Operation • M - F | 9am - 5pm EST

MILB.COM

About Us

Welcome to the Minor League Baseball Official Online Store. Merchandise for the MiLB Official Store is provided in an effort to offer the most extensive selection of officially licensed Minor League Baseball products on the internet.

For questions regarding specific team merchandise and order status please contact the team directly. For all other inquiries please contact us. Thank you for supporting Minor League Baseball.

Accepted Payments

© 2026 Baseball Internet Rights Company, LLC ("BIRCO"). All rights reserved. The following are trademarks or service marks of Minor League Baseball entities and may be used only with permission of Baseball Internet Rights Company, LLC or the relevant Minor League Baseball entity: Minor League Baseball, MiLB, the silhouetted batter logo, The Road to the Show, Pro Debut, and the names, nicknames, logos, uniform designs, color combinations, and slogans designating the Minor League Baseball clubs, leagues and entities, and their respective mascots, events and exhibitions.

MiLB Ecommerce Marketplace Powered by Snow Commerce, Inc.